[Solved] Which of the following is the correct way to declare a custom checked exception class in Java? — Ans: class MyException extends Exception {} | Java

Java - Custom Exceptions

Which of the following is the correct way to declare a custom checked exception class in Java?

Aclass MyException extends RuntimeException {}

Bclass MyException extends Exception {}

Cclass MyException extends Error {}

Dclass MyException extends Throwable {}

Step-by-Step Solution

Solution:

Step 1: Understand checked vs unchecked exceptions
Checked exceptions must extend Exception but not RuntimeException. Unchecked exceptions extend RuntimeException.
Step 2: Identify the correct superclass for a checked custom exception
Extending Exception creates a checked exception, which requires handling or declaration.
Final Answer:
class MyException extends Exception {} -> Option B
Quick Check:
Checked exception = extends Exception [OK]

Quick Trick: Checked exceptions extend Exception, unchecked extend RuntimeException [OK]

Common Mistakes:

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Which of the following is the correct way to declare a custom checked exception class in Java?